Malicious PDF — malware analysis report

Static analysis result for SHA-256 207f696bbbec3c12…

MALICIOUS

PDF

34.3 KB Created: 2020-08-09 23:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81e1f508bd8676957b788d66e6e20ede SHA-1: ed1ed3a8da64561061abf5b4ad8a459789f62cd8 SHA-256: 207f696bbbec3c12d80b4ac8ad6ec3f9a20465561ab475b8b2fe9e8d0c3b5ebf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a direct link to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains the same URL as the malicious redirector. This suggests the primary purpose of the PDF is to redirect the user to malicious content via the ttraff.com URL.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=cours+de+l+atomistique+et+liaison+chimique+pdf
    • http://zovade.greecepaint.com/uploads/1/3/1/4/131482975/8188354.pdf
    • http://files.creekviewvolleyball.com/uploads/1/3/1/8/131856039/9693390.pdf
    • http://files.leatippett.com/uploads/1/3/0/9/130969194/6920734.pdf
    • http://files.beardedbeaverco.com/uploads/1/3/0/7/130776877/zerudinime_foxenimesamop.pdf
    • http://files.providencevc.com/uploads/1/3/2/7/132740685/4339988.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/qualities_of_a_transformational_leader.pdf
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/convert_xfdl_to_online.pdf
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/2523181559.pdf
    • https://cdn.shopify.com/s/files/1/0434/0976/8604/files/pdf_biomassa_de_banana_verde.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/pexasuxo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/beripowiloteke.pdf
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/panadotosadubapuma.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/teragavujulusoxapaso.pdf
    • https://cdn.shopify.com/s/files/1/0437/1247/9382/files/38002087135.pdf
    • https://cdn.shopify.com/s/files/1/0435/6099/2927/files/odontogenic_cyst.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004615.bin
c2776cc82fe662b84ecdfda92b2ae348e954c7f7f048e7dbf28ea544f6a94287		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4615 5428 bytes
font_01_sfnt_off00005859.bin
58e604a0264a146654dbca7e6a60de7ddd7dd609bc01ad18279cfafed6de9726		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5859 10600 bytes

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